CN104038311A - PMCH transmission method and equipment - Google Patents
PMCH transmission method and equipment Download PDFInfo
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- CN104038311A CN104038311A CN201310073773.8A CN201310073773A CN104038311A CN 104038311 A CN104038311 A CN 104038311A CN 201310073773 A CN201310073773 A CN 201310073773A CN 104038311 A CN104038311 A CN 104038311A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a physical multicast channel (PMCH) transmission method and equipment. The method comprises the following steps that: a network device sends PMCH sub frame configuration signaling, for indicating a PMCH transmission sub frame, to a terminal, wherein the PMCH transmission sub frame includes a first time slot for transmitting a PMCH and a second time slot for transmitting a uni-cast channel and/or signal; and in the PMCH transmission sub frame, the network device maps the PMCH to the first time slot for transmission. After a terminal device receives the PMCH sub frame configuration signaling sent by the network device, the PMCH mapped at the first time slot is received in the PMCH transmission sub frame. According to the invention, PMCH transmission at a new carrier type (NCT) carrier can be supported.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of PMCH transmission method and equipment.
Background technology
PMCH(Physical multicast channel, Physical Multicast Channel) be LTE(Long Term Evolution, Long Term Evolution) down channel in system, can give multiple users by file or data content transmission.
PMCH is used for carrying multi-service information.In TD(Time Division, time-division) in-LTE system, MBMS(Multimedia Broadcast Multicast Service, multimedia broadcasting and multicast function) be divided into single cell transmission and many cell transmission.The MBMS business of single cell transmission is only transmitted in a cell range, and multicast service channel and multicast control channel are all mapped to DSCH Downlink Shared Channel and carry out the transmission of point-to-multipoint.The MBMS business of many cell transmission is at a MBSFN(Multicast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) in region, multiple sectors at same step MBMS transmission business, at this moment multicast service channel and multicast control channel are all mapped to Multicast Channel and carry out the transmission of point-to-multipoint.
MBSFN subframe is a kind of subframe that is different from clean culture subframe.Previous or two symbols of this class subframe are unicast symbols, and centre is a part of idle interval (GAP), the short CP(Cyclic Prefix that this is is clean culture due to previous symbol, Cyclic Prefix), and the long CP that symbol is multicast below causes.Remaining part is the real multicast symbol of carrying out PMCH transmission below, as shown in Figure 1.
In LTE-A system (evolution system of LTE), introduce Physical Downlink Control Channel (the Enhanced Physical Downlink Control Channel strengthening, EPDCCH), as shown in Figure 2, EPDCCH and PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel) transmit by the mode of frequency division multiplexing.Traditional PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) be called Legacy PDCCH, EPDCCH cannot support only in the first two symbol, to transmit at present.
In order to reduce overhead, in LTE Rel-12, define a kind of new carrier type (New Carrier Type, NCT), on NCT, do not support legacy PDCCH transmission, can transmit EPDCCH.Simultaneously on NCT based on URS(UE-specific Reference Signals, user's DRS (Dedicated Reference Signal)) carry out data demodulates, support the TRS(time-frequency track reference symbol in 5ms cycle) transmission.
On NCT carrier wave, if do not support PMCH transmission, many cell MBMSs transport service can only provide by backward compatibility carrier wave, if UE(User Equipment, subscriber equipment, i.e. terminal) only polymerization multiple NCT, cannot support MBMS transmission, at this moment network need to use mode of unicast to provide transfer of data to UE, can reduce efficiency of transmission, therefore on NCT, needs to support the transmission of PMCH.
Not yet there is at present the scheme of supporting PMCH transmission on NCT.
Summary of the invention
The embodiment of the present invention provides a kind of PMCH transmission method and equipment, supports PMCH transmission to realize on NCT.
The PMCH transmission method that the embodiment of the present invention provides, comprising:
The network equipment sends PMCH sub-frame configuration signaling to terminal, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal; The described network equipment, in PMCH transmission subframe, is mapped in PMCH on the first time slot and transmits.
The PMCH transmission method that the embodiment of the present invention provides, comprising:
Terminal equipment receives the PMCH sub-frame configuration signaling that the network equipment sends, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal; Described terminal equipment, in PMCH transmission subframe, receives the PMCH being mapped on the first time slot.
The network equipment that the embodiment of the present invention provides, comprising:
Configuration signal sending module, for send PMCH sub-frame configuration signaling to terminal, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module, in PMCH transmission subframe, is mapped in PMCH on the first time slot and transmits.
The terminal equipment that the embodiment of the present invention provides, comprising:
Configuration signal receiver module, the PMCH sub-frame configuration signaling sending for receiving the network equipment, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module, in PMCH transmission subframe, receives the PMCH being mapped on the first time slot.
The above embodiment of the present invention, by transmitting in a time slot in PMCH transmission subframe, another time slot is used for transmitting unicast tunnel or/and signal, thereby can support transmitting PMCH on NCT carrier wave.Especially at needs in a subframe when transmitting PMCH and EPDCCH, can be by PMCH and the transmission of EPDCCH time division multiplexing, thus can support the time division multiplexing transmission of EPDCCH and PMCH on NCT carrier wave.
Brief description of the drawings
Fig. 1 is MBSFN subframe structure schematic diagram in prior art;
Fig. 2 strengthens PDCCH structural representation in prior art;
Fig. 3 is the schematic flow sheet in the embodiment of the present invention;
Fig. 4 is EPDCCH in the embodiment of the present invention one and the multiplexing schematic diagram of PMCH;
Fig. 5 is EPDCCH in the embodiment of the present invention two and the multiplexing schematic diagram of PMCH;
The structural representation of the base station equipment that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the terminal equipment that Fig. 7 provides for the embodiment of the present invention.
Embodiment
On NCT, if use existing PMCH transmission plan, in PMCH transmission subframe, cannot support EPDCCH transmission simultaneously; If use the multiplexing transmission mode of legacy PDCCH and PMCH, need on NCT, support the transmission plan of two kinds of descending control signalings, and in the time using common CP, also have GAP existence.
The embodiment of the present invention has provided the transmission plan of a kind of PMCH, and a time slot that makes PMCH only take subframe transmits, and further, can in another time slot of this subframe, transmit unicast tunnel or/and signal, thereby support the PMCH transmission on NCT.Further, in this subframe, there is not GAP, realize the utilance that simply and has further improved resource.
The PMCH the transmission plan below embodiment of the present invention being provided is elaborated.
In the embodiment of the present invention, the network equipment, in PMCH transmission subframe, is mapped in PMCH on a time slot of this subframe and transmits, and in another time slot, also can further transmit unicast tunnel or/and signal.Wherein, PMCH transmission subframe refers to the MBSFN subframe of transmitting PMCH.Described unicast tunnel is or/and signal, comprises one of following or combination in any:
EPDCCH；
PDSCH；
PBCH(Physical Broadcast Channel);
CSI-RS(channel quality information reference symbol);
TRS(time-frequency track reference symbol);
The main reference synchronization symbol of PSS(), or/and the auxiliary synchronous reference signal of SSS().
For the time slot of transmitting PMCH and for transmitting unicast tunnel or/and the time slot of signal, its position may be prescribed as: unicast tunnel, or/and signal map is transmitted in first time slot of MBSFN subframe, is mapped in PMCH in second time slot of MBSFN subframe and is transmitted; Also can regulation PMCH be mapped in first time slot of MBSFN subframe and transmits, by unicast tunnel or/and signal map in second time slot of MBSFN subframe, transmit.Can also notify by high-level signaling, instruction for the time slot of transmitting PMCH and for transmitting unicast tunnel or/and the time slot of signal.Such as, in MBSFN subframe n, regulation is mapped in EPDCCH in first time slot of this subframe and transmits, PMCH is mapped in second time slot of this subframe and transmits, in MBSFN subframe n+1, regulation is mapped in PMCH in first time slot of this subframe and transmits, and EPDCCH is mapped in second time slot of this subframe and transmits.
Preferably, in two of this MBSFN subframe time slots, can adopt different CP length transmission.Wherein, carry out unicast tunnel or/and the time slot of signal transmission, can the choice for use CP identical with generic downlink subframe, the time slot that carries out PMCH transmission uses expands CP.
Preferably, in the time slot of transmitting PMCH, calculate the TB(transmission block that in a time slot, PMCH carries) big or small time, another corresponding PRB(Physical Resource Block, Physical Resource Block) number is: PRB number × x that downlink bandwidth is corresponding, wherein, x is for setting coefficient, span is: 0 < x < 1, preferred, x value is 0.6.
Preferably, in the time slot of transmission EPDCCH, support the transmission of PDSCH by the mode of frequency division multiplexing, while calculating the TB block size of the PDSCH transmitting in a time slot, make corresponding PRB number be: the PRB number of distributing to PDSCH transmission is multiplied by one sets coefficient y, wherein 0<y<1, y is preferably chosen as 0.75.
Preferably, the generation of PMCH demodulation pilot frequency sequence can adopt existing scheme, the RE(Resource Unit of PMCH demodulation pilot frequency) mapping can adopt the mapping mode of existing MBSFN pilot tone in second time slot,, first OFDM(Orthogonal Frequency Division Multiplexing in current time slots, OFDM) and the 5th OFDM symbol on shine upon respectively the demodulation pilot frequency of PMCH according to the mode of the subcarrier in interval, on these two symbols, use different subcarriers to shine upon.
Preferably, carry out unicast tunnel or/and the scheme of the demodulation pilot frequency that the time slot of signal transmission uses can comprise one of following:
(1) use special subframe under common CP to configure the demodulated reference signal DMRS(demodulation reference signal of 1/2/6/7 correspondence, demodulated reference signal) structure;
(2) use special subframe under expansion CP to configure the DMRS structure of 1/2/3/5/6 correspondence;
(3) use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
(4) use the DMRS pattem(pattern strengthening).
Preferably, carrying out unicast tunnel or/and in the time slot of signal transmission, if also transmit CSI-RS, it is one of following that the scheme of described CSI-RS pattern comprises:
(1) use the available pattern of existing CSI-RS pattern in current time slots;
(2) use the CSI-RS pattern strengthening.
Preferably, carrying out unicast tunnel or/and in the time slot of signal transmission, if also transmit TRS, sequence and mapping scheme that TRS uses in this time slot, can be identical with the scheme that existing TRS transmits in a time slot.
For clearer, the embodiment of the present invention is described, be described below in conjunction with specific embodiment.For convenience of description, in following examples, two time slots in MBSFN subframe are distinguished to called after the first time slot and the second time slot, wherein the first time slot and the second time slot are different time slots, and order before and after " first " here and " second " do not represent, is only used to distinguish different time slots.
Embodiment mono-
As shown in Figure 3, this flow process can comprise:
Step 301: base station sends PMCH sub-frame configuration signaling to UE, this configuration signal instruction PMCH transmission subframe; Wherein, this PMCH transmission subframe comprises the first time slot and the second time slot, and the first time slot is for transmitting PMCH, and the second time slot is used for transmitting unicast tunnel or/and signal.
Step 302: base station sends PMCH subframe to UE.
Concrete, base station is mapped in EPDCCH the first slot transmission of this subframe, PMCH is mapped on the second time slot of this subframe and transmits, thereby make EPDCCH and PMCH in this subframe, carry out time division multiplexing transmission, further, in the time slot of transmission EPDCCH, EPDCCH and PDSCH adopt frequency division multiplexing mode to transmit.
As shown in Figure 4, EPDCCH and PDSCH use first time slot of this subframe to transmit, under DMRS structure use common CP in this time slot, special subframe configures the DMRS structure of 1/2/6/7 correspondence, if while there is PDSCH transmission, while calculating the TB size of PDSCH, make corresponding PRB number be: the PRB number of distributing to PDSCH transmission is multiplied by coefficient 0.75.If this subframe for TRS transmission subframe, is only shone upon TRS in first time slot of transmission EPDCCH and PDSCH simultaneously.
PMCH uses second time slot of this subframe to transmit, according to existing MBSFN pilot tone, the mapping mode in second time slot shines upon PMCH demodulation pilot frequency, be mapped on first and the 5th OFDM symbol of this time slot, in the time calculating the TB size of PMCH, make corresponding PRB number be: the PRB number that downlink bandwidth is corresponding is multiplied by coefficient 0.6.First time slot of this subframe uses common CP transmission, has 7 OFDM symbols; In second time slot of this subframe, use expansion CP transmission, have 6 OFDM symbols.
Step 303:UE receives the PMCH sub-frame configuration signaling that base station sends, and according to this configuration signal, according to the above-mentioned multiplexing transmission structure providing, receives the information that is mapped in the EPDCCH on the first time slot and is mapped in the PMCH channel on the second time slot.If the time slot of transmission EPDCCH also adopts frequency division multiplexing mode to transmit PDSCH, also need in the first time slot, detect the information of demodulation PDSCH channel.
Embodiment 2:
The flow process of this embodiment is identical with embodiment 1, but the transmission location of PMCH and EPDCCH is different, concrete:
As shown in Figure 5, PMCH uses first time slot of this subframe to transmit, according to existing MBSFN pilot tone, the mapping mode in second time slot shines upon PMCH demodulation pilot frequency, be mapped on first and the 5th OFDM symbol of current time slots, in the time calculating the TB size of PMCH, make corresponding PRB number be: the PRB number that downlink bandwidth is corresponding is multiplied by coefficient 0.6.
EPDCCH/PDSCH(is EPDCCH, or EPDCCH and PDSCH) transmit at second time slot of this subframe, DMRS structure in this time slot has been used common subframe DMRS structure in second time slot under expansion CP, if while there is PDSCH transmission, while calculating the TB size of PDSCH, make corresponding PRB number be: the PRB number of distributing to PDSCH transmission is multiplied by coefficient 0.75.If this subframe is CSI-RS transmission subframe simultaneously, in the time slot of transmission EPDCCH/PDSCH, select available CSI-RS pattern to shine upon, for example, for TDD system, in this subframe, can support the RE of CSI-RS transmission as shown in the oblique line fill area in Fig. 5.Two time slots of this subframe all use expansion CP transmission, have 12 OFDM symbols.
Can find out by above flow process, in the PMCH transmission plan that the embodiment of the present invention proposes, the time slot that PMCH only takies in a subframe transmits, can support the time division multiplexing transmission of EPDCCH and PMCH on NCT carrier wave, eliminate the GAP that may exist in MBSFN subframe simultaneously, improved the frequency spectrum resource utilization rate of system.
Based on identical technical conceive, the embodiment of the present invention also provides a kind of network equipment and a kind of terminal equipment.
Referring to Fig. 6, the structural representation of the network equipment providing for the embodiment of the present invention.This network equipment can be base station equipment, and this equipment can comprise: configuration signal sending module 61 and transport module 62, wherein:
Configuration signal sending module 61, for send PMCH sub-frame configuration signaling to terminal, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module 62, in PMCH transmission subframe, is mapped in PMCH on the first time slot and transmits.
Concrete, described the first time slot is first time slot in PMCH transmission subframe, described the second time slot is second time slot of PMCH transmission subframe; Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe; Or the position of described the first time slot and the second time slot is notified by high-level signaling, wherein the first time slot and the second time slot are different time slots.
Concrete, transport module 62, in the first time slot, in transmission block TB when size that definition PMCH carries, is defined as corresponding PRB number: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
Concrete, transport module 62, in the first time slot, respectively according to the mode of the subcarrier in interval, shines upon the demodulation pilot frequency of PMCH on first OFDM symbol and the 5th OFDM symbol; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
Concrete, described the first time slot uses expansion CP, and described the second time slot uses the CP identical with generic downlink subframe.
Concrete, one of demodulation pilot frequency scheme below transport module 62 can use in the second time slot:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
Concrete, the unicast tunnel that transport module 62 transmits in described the second time slot is or/and signal, comprises one of following or combination: EPDCCH, PDSCH, and PBCH, CSI-RS, TRS, PSS is or/and SSS.
Concrete, transport module 62 can be in the time slot of transmission PDSCH, in transmission block TB when size that definition PDSCH carries, corresponding PRB number is defined as: PRB number × setting coefficient of distributing to PDSCH transmission, wherein, 0 < sets coefficient < 1.
Concrete, transport module 62 can use the scheme of the pattern of following any CSI-RS: use the available pattern of existing CSI-RS pattern in current time slots; Or, use the CSI-RS pattern strengthening.
Referring to Fig. 7, the structural representation of the terminal equipment providing for the embodiment of the present invention.This terminal equipment can comprise: configuration signal receiver module 71, transport module 72, wherein:
Configuration signal receiver module 71, the PMCH sub-frame configuration signaling sending for receiving the network equipment, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module 72, in PMCH transmission subframe, receives the PMCH being mapped on the first time slot.
Concrete, described the first time slot is first time slot in PMCH transmission subframe, described the second time slot is second time slot of PMCH transmission subframe; Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe; Or described terminal equipment, according to the notice of high-level signaling, is determined the first time slot and the second time slot position in PMCH transmission subframe, wherein the first time slot and the second time slot are different time slots.
Concrete, transport module 72, in the first time slot, while determining the transmission block TB size that PMCH carries, is defined as corresponding PRB number: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
Concrete, transport module 72, in the first time slot, respectively according to the mode of the subcarrier in interval, detects the demodulation pilot frequency of PMCH on first OFDM symbol and the 5th OFDM symbol; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
Concrete, described the first time slot uses expansion CP, and described the second time slot uses the CP identical with generic downlink subframe.
Concrete, it is one of following that the scheme of the demodulation pilot frequency using in described the second time slot comprises:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
Concrete, the unicast tunnel transmitting in described the second time slot is or/and signal, comprises one of following or combination: EPDCCH, PDSCH, and PBCH, CSI-RS, TRS, PSS is or/and SSS.
Concrete, transport module 72 can be in the time slot of transmission PDSCH, while determining the transmission block TB size that PDSCH carries, corresponding PRB number is defined as: PRB number × setting coefficient of distributing to PDSCH transmission, wherein, 0 < sets coefficient < 1.
Concrete, it is one of following that the scheme of the pattern of CSI-RS comprises: use the available pattern of existing CSI-RS pattern in current time slots; Or, use the CSI-RS pattern strengthening.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be mobile phones in order to make a station terminal equipment, personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (36)
1. a Physical Multicast Channel PMCH transmission method, is characterized in that, described method comprises:
The network equipment sends PMCH sub-frame configuration signaling to terminal, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
The described network equipment, in PMCH transmission subframe, is mapped in PMCH on the first time slot and transmits.
2. the method for claim 1, is characterized in that, described the first time slot is first time slot in PMCH transmission subframe, and described the second time slot is second time slot of PMCH transmission subframe;
Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe;
Or the position of described the first time slot and the second time slot is notified by high-level signaling, wherein the first time slot and the second time slot are different time slots.
3. the method for claim 1, it is characterized in that, in the first time slot, transmission block TB when size that definition PMCH carries, corresponding Physical Resource Block PRB number is defined as: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
4. the method for claim 1, is characterized in that, in the first time slot, on first orthogonal frequency division multiplex OFDM symbol and the 5th OFDM symbol, respectively according to the mode of the subcarrier in interval, shines upon the demodulation pilot frequency of PMCH; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
5. the method for claim 1, is characterized in that, described the first time slot uses extended cyclic prefix CP, and described the second time slot uses the CP identical with generic downlink subframe.
6. the method for claim 1, is characterized in that, it is one of following that the scheme of the demodulation pilot frequency using in the second time slot comprises:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
7. the method for claim 1, is characterized in that, the unicast tunnel transmitting in described the second time slot is or/and signal, comprises one of following or combination:
Strengthen Physical Downlink Control Channel EPDCCH;
Physical Downlink Shared Channel PDSCH;
Physical Broadcast Channel PBCH;
Channel quality information reference symbol CSI-RS;
Time-frequency track reference symbol TRS;
Main reference synchronization symbol PSS, or/and auxiliary synchronous reference signal SSS.
8. method as claimed in claim 7, it is characterized in that, in the time slot of transmission PDSCH, transmission block TB when size that definition PDSCH carries, corresponding PRB number is defined as: PRB number × setting coefficient of distributing to PDSCH transmission, wherein, 0 < sets coefficient < 1.
9. method as claimed in claim 7, is characterized in that, it is one of following that the scheme of the pattern of described CSI-RS comprises:
Use the available pattern of existing CSI-RS pattern in current time slots;
Use the CSI-RS pattern strengthening.
10. a Physical Multicast Channel PMCH transmission method, is characterized in that, described method comprises:
Terminal equipment receives the PMCH sub-frame configuration signaling that the network equipment sends, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Described terminal equipment, in PMCH transmission subframe, receives the PMCH being mapped on the first time slot.
11. methods as claimed in claim 10, is characterized in that, described the first time slot is first time slot in PMCH transmission subframe, and described the second time slot is second time slot of PMCH transmission subframe;
Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe;
Or described terminal equipment, according to the notice of high-level signaling, is determined the first time slot and the second time slot position in PMCH transmission subframe, wherein the first time slot and the second time slot are different time slots.
12. methods as claimed in claim 10, it is characterized in that, in the first time slot, while determining the transmission block TB size that PMCH carries, corresponding Physical Resource Block PRB number is defined as: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
13. methods as claimed in claim 10, is characterized in that, in the first time slot, on first friendship frequency division multiplex OFDM symbol and the 5th OFDM symbol, respectively according to the mode of the subcarrier in interval, detect the demodulation pilot frequency of PMCH; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
14. methods as claimed in claim 10, is characterized in that, described the first time slot uses extended cyclic prefix CP, and described the second time slot uses the CP identical with generic downlink subframe.
15. methods as claimed in claim 10, is characterized in that, it is one of following that the scheme of the demodulation pilot frequency using in the second time slot comprises:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
16. methods as claimed in claim 10, is characterized in that, the unicast tunnel transmitting in described the second time slot is or/and signal, comprise one of following or combination:
Strengthen Physical Downlink Control Channel EPDCCH;
Physical Downlink Shared Channel PDSCH;
Physical Broadcast Channel PBCH;
Channel quality information reference symbol CSI-RS;
Time-frequency track reference symbol TRS;
Main reference synchronization symbol PSS, or/and auxiliary synchronous reference signal SSS.
17. methods as claimed in claim 16, it is characterized in that, in the time slot of transmission PDSCH, while determining the transmission block TB size that PDSCH carries, corresponding PRB number is defined as: PRB number × setting coefficient of distributing to PDSCH transmission, wherein, 0 < sets coefficient < 1.
18. methods as claimed in claim 16, is characterized in that, it is one of following that the scheme of the pattern of described CSI-RS comprises:
Use the available pattern of existing CSI-RS pattern in current time slots;
Use the CSI-RS pattern strengthening.
19. 1 kinds of network equipments, is characterized in that, comprising:
Configuration signal sending module, for send Physical Multicast Channel PMCH sub-frame configuration signaling to terminal, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module, in PMCH transmission subframe, is mapped in PMCH on the first time slot and transmits.
20. network equipments as claimed in claim 19, is characterized in that, described the first time slot is first time slot in PMCH transmission subframe, and described the second time slot is second time slot of PMCH transmission subframe;
Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe;
Or the position of described the first time slot and the second time slot is notified by high-level signaling, wherein the first time slot and the second time slot are different time slots.
21. network equipments as claimed in claim 19, it is characterized in that, described transport module specifically for, in the first time slot, transmission block TB when size that definition PMCH carries, corresponding Physical Resource Block PRB number is defined as: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
22. network equipments as claimed in claim 19, it is characterized in that, described transport module specifically for, in the first time slot, on first orthogonal frequency division multiplex OFDM symbol and the 5th OFDM symbol, respectively according to the mode of the subcarrier in interval, shine upon the demodulation pilot frequency of PMCH; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
23. network equipments as claimed in claim 19, is characterized in that, described the first time slot uses extended cyclic prefix CP, and described the second time slot uses the CP identical with generic downlink subframe.
24. network equipments as claimed in claim 19, is characterized in that, described transport module is specifically for, one of demodulation pilot frequency scheme below using in the second time slot:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
25. network equipments as claimed in claim 19, is characterized in that, the unicast tunnel that described transport module transmits in described the second time slot is or/and signal, comprise one of following or combination:
Strengthen Physical Downlink Control Channel EPDCCH;
Physical Downlink Shared Channel PDSCH;
Physical Broadcast Channel PBCH;
Channel quality information reference symbol CSI-RS;
Time-frequency track reference symbol TRS;
Main reference synchronization symbol PSS, or/and auxiliary synchronous reference signal SSS.
26. network equipments as claimed in claim 25, it is characterized in that, described transport module specifically for, in the time slot of transmission PDSCH, transmission block TB when size that definition PDSCH carries, corresponding PRB number is defined as: distribute to PRB number × setting coefficient of PDSCH transmission, wherein, 0 < sets coefficient < 1.
27. network equipments as claimed in claim 25, is characterized in that, it is one of following that the scheme of the pattern of described CSI-RS comprises:
Use the available pattern of existing CSI-RS pattern in current time slots;
Use the CSI-RS pattern strengthening.
28. 1 kinds of terminal equipments, is characterized in that, comprising:
Configuration signal receiver module, the Physical Multicast Channel PMCH sub-frame configuration signaling sending for receiving the network equipment, described configuration signal instruction PMCH transmission subframe; Wherein, described PMCH transmission subframe comprises the first time slot and the second time slot, and described the first time slot is for transmitting PMCH, and described the second time slot is used for transmitting unicast tunnel or/and signal;
Transport module, in PMCH transmission subframe, receives the PMCH being mapped on the first time slot.
29. terminal equipments as claimed in claim 28, is characterized in that, described the first time slot is first time slot in PMCH transmission subframe, and described the second time slot is second time slot of PMCH transmission subframe;
Or described the first time slot is second time slot in PMCH transmission subframe, described the second time slot is first time slot of PMCH transmission subframe;
Or described terminal equipment, according to the notice of high-level signaling, is determined the first time slot and the second time slot position in PMCH transmission subframe, wherein the first time slot and the second time slot are different time slots.
30. terminal equipments as claimed in claim 28, it is characterized in that, described transport module specifically for, in the first time slot, while determining the transmission block TB size that PMCH carries, corresponding Physical Resource Block PRB number is defined as: PRB number × setting coefficient that downlink bandwidth is corresponding, wherein, 0 < sets coefficient < 1.
31. terminal equipments as claimed in claim 28, it is characterized in that, described transport module specifically for, in the first time slot, on first orthogonal frequency division multiplex OFDM symbol and the 5th OFDM symbol, respectively according to the mode of the subcarrier in interval, detect the demodulation pilot frequency of PMCH; Wherein, the subcarrier using when shining upon on the 5th OFDM symbol at first OFDM symbol is different.
32. terminal equipments as claimed in claim 28, is characterized in that, described the first time slot uses extended cyclic prefix CP, and described the second time slot uses the CP identical with generic downlink subframe.
33. terminal equipments as claimed in claim 28, is characterized in that, it is one of following that the scheme of the demodulation pilot frequency using in the second time slot comprises:
Under use common CP, special subframe configures the demodulated reference signal DMRS structure of 1/2/6/7 correspondence;
Under use expansion CP, special subframe configures the DMRS structure of 1/2/3/5/6 correspondence;
Use a corresponding DMRS symbol of time slot in the DMRS structure of common subframe;
Use the DMRS pattern strengthening.
34. terminal equipments as claimed in claim 28, is characterized in that, the unicast tunnel transmitting in described the second time slot is or/and signal, comprise one of following or combination:
Strengthen Physical Downlink Control Channel EPDCCH;
Physical Downlink Shared Channel PDSCH;
Physical Broadcast Channel PBCH;
Channel quality information reference symbol CSI-RS;
Time-frequency track reference symbol TRS;
Main reference synchronization symbol PSS, or/and auxiliary synchronous reference signal SSS.
35. terminal equipments as claimed in claim 34, it is characterized in that, described transport module specifically for, in the time slot of transmission PDSCH, while determining the transmission block TB size that PDSCH carries, corresponding PRB number is defined as: distribute to PRB number × setting coefficient of PDSCH transmission, wherein, 0 < sets coefficient < 1.
36. terminal equipments as claimed in claim 34, is characterized in that, it is one of following that the scheme of the pattern of CSI-RS comprises:
Use the available pattern of existing CSI-RS pattern in current time slots;
Use the CSI-RS pattern strengthening.
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| CN201310073773.8A CN104038311B (en) | 2013-03-07 | 2013-03-07 | A kind of PMCH transmission methods and equipment |
| PCT/CN2014/072123 WO2014135002A1 (en) | 2013-03-07 | 2014-02-17 | Pmch transmission method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310073773.8A CN104038311B (en) | 2013-03-07 | 2013-03-07 | A kind of PMCH transmission methods and equipment |
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| CN104038311B (en) | 2017-09-29 |
| WO2014135002A1 (en) | 2014-09-12 |
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